Infrared ray reflector lamp



sept. 15, 1936.` W. G, BUNZL 2,054,669

INFRARED RAY REFLECTOR LAMP Filed Nov. 2l, 1954 I @WVM/Livi ATTORNEY.

Patented Sept. 1.5, 1936 PATENT OFFICE 2,054,669 INFRARED RAY REFLECTOR LAMP Walter G. Bunzl, New York, N. Y. Application November 21, 1934, Serial No. 754,046

3 Claims.

The present invention relates to an improvement in lamps and more specifically relates toy lamps for generating and reflecting infra-red rays for use by doctors, hospitals and similar professional use in the therapeutic treatment of human beings.

The important feature of the present device is in the provision of plural infra-red generating means within a single reector, together with lo plural circuits controlled by switches, wherein the electric current may be supplied toy the generators, either singly, for generating mild emanation, or in plural combinations, at will, thereby to create infra-red rays for deeper penetration, than where a single generator unit, or element, is used.

Other features of advantage, such as the adjustability of the heater-reflector head for universal adjustment, will appear as the herein description proceeds and it is obvious that modications may be made in the structure and circuits herein disclosed without departing from the spirit hereof or the scope of the appended claims. In the drawing, Fig. 1 is a perspective view of the lamp; Fig. 2 is an enlarged sectional view of the reiiector-generator, taken on the line 2 2, Fig. 3, looking in the direction of the arrows; Fig. 3 is an enlarged bottom view of the reflectorgenerator; Fig. 4 is a side view of the threaded terminal socket of the heater removed from the generator; Fig. 5 is a rear View of one of the plural infra-red ray generator elements removed from the reector with its circuit connections broken away; Fig. 6 is a diagrammatic view of the plural generator and the circuits and circuit control; Figs. '7 and 8 are views similar to Fig. 6, but showing diierent circuit connections, for different values of infra-red ray strength; Fig. 9 shows the rear View of another form of generator element removed from the reector with the conductors broken away, and Fig. 10 is a View of the generator elements of Fig. 9 stripped of its housing.

In Fig. 1 the device is shown as comprising a cylindrical upright post I, mounted upon a tripod base 2, which is provided with roller casters 3, one on each leg of the tripod, for ease in moving the apparatus about for positioning in desired relation to the patient.

A movable or slidable hollow sleeve clamp 4 tting the diameter of the upright I, is provided with a manipulable clamp screw 5, for clamping the sleeve 4 in desired vertical adjustment on the upright I.

The sleeve 4 is also provided with an integral arm 6 having a trunnion l at its outer end to cooperate with a trunnioned arm 20, which extends from the lamp socket and switch housing 8, so that the reflector I0 may have means for vertical, angular adjustment on trunnions 1 and 26, relative to the upright l The trunnions 'I and 2G may be frictioned or locked by a thumb screw,

not shown, to adjustably lock the two in desired operative positions.

The reiiector I is open at its contracted end, and receives therein the lower strap metal generator holding means l4-l4 and the fastening means 23-23 of the threaded terminal I3, said latter fastening means comprising a U shaped member fixed to the lower end of the terminal I3. The two ends 23-23 of said fastening means are each riveted as at a, Fig. 4 generator holder, Figs. 2 and also preferably of strap metal verse integral cross arm Ill joining the angular legs I4I4. In turn, the reflector is riveted to the arms I 4-I4 as at c, Fig. 2, to hold the reflector in assembly to said terminal I3. A generator, generally denoted by I I, and comprising an outer to a leg I4 of the 3, said holder being and having a transable dielectric packing e, Fig. 2, such as asbestos wool. This generator is mounted upon the lower face of the transverse holding arm I4 within and in concentric relation to the reflector I0, and is held in this operative position by a strap metal binder l2, the ends of which are oiset, to seat the generator ring I I, binder I2, in turn being riveted to the lower face of arm I4 by rivets ,f-g, Figs. 2 and 3.

The generator elements I 8-I 9, may be of various forms, in order to permit of variations in the penetrative capacity of the infra-red rays by means tobe later described. As in Figs. 2, 3, 5, 6, '7 and 8, the generator coil may be divided into two sectional, legged coils I8 and I9, joined together at their mid-points, with their terminals separately connected into a circuit by different conductors.

As in Fig. 6, the coils I8 and I9 are joined at 25, and a conductor 26 is connected at 25, the other end of 2S being operative to be contacted with a switch arm 34, and thence by conductor 33 to an electric current source B. Switch 34 is also operative to contact with the terminal of conductor 21, which in turn is connected to the terminal of coil I8. Therefore, switch 34 can open or close either end of coil I8 to the current source B.

Coil I9, connected by common conductor to coil I8 is connected at its lower end to current source B by conductors 28, and 3I, being con- Y Figs. 6, '1

trolled by switch 29. Conductor 21 is connected to a shunt conductor 32 and to current source B through conductor 3l, this shunt connection being controlled by a switch 35.

As thus shown in Fig. 6, with switch 34 closing conductor circuit 21 and switch 29 closing the conductor circuit 28, 3U and 3l, the generator coils I8-I9 are series connected to source B and infra-red rays of low intensity are generated.

To increase the intensity of the rays the switch 3, Fig. '7., is moved to break the conductor circuit 21, and close the conductor circuit 26, and thus the coil I8 is cut out of current source B and the I coil I9 is then in current connection with source B, giving off a greater intensity of infra-red rays than that given oi by the circuit connection of Fig. 6. To obtain a third and greater intensity of infra-red rays, with consequently greater penetrations, switch 34 closes conductor circuit 26-33 to source B, switch 29 closes conductor cir'- cuit 28, 39 and 3| to source B and shunt switch 35 closes shunt conductorcircuit 32 and 21 rand the current flow is then from B, through conductors 3i, 39 and 29 through coil I9, through conductors 25, 26 and 33 to B. Simultaneously current from B passes through conductors 3 I, 32 and 21 through coil I8 and from common conductor 25 through conductors 26 and 33 to B. Thus current flows simultaneously through both coils I8-I9 from B and returns to B througha common return circuit 25, 26 and 3, and this circuit arrangement further greatly increases the infrared ray emanation of deeper penetration than the emanations indicated for Figs. 6 and '7.

A single switch, the button control only of which is indicated as at 9, Fig. 1, the switch being housed in the switch housing 8, may be used to select the circuit arrangement desired for low, intermediate or high infra-red ray emanations. The conductors are shown, in Fig. l, as an insulated cable t, Fig. l, leading into said switch housing 8.

A modified form of generator coil is shown in Figs. 9 and 10, Fig. 10 showing the generator coils set in concentric arrangement. The concentric coils operate in the same manner as described for and 8 and the same indices are used for Figs. 9 and 10, as are usedV in Figs. 6, 1 and 8.

In the generators as in Figs. 5, 6, 7 and 8, these may be regarded as a single open coil unit IB-I 9, which is Vtapped at intermediate points whereby to alter the emanation therefrom by coupling one or more sections of the unit into circuit.

The interior surface of the reflector is highly polished so as to concentrate and direct the infra-red rays outwardly from the generator to the desired point of application.

It will be apprehended from the foregoing that the several changes of emanation may be rapidly and easily controlled by the method herein outlined. Y

Having thus described theinvention, what is claimed is:

1. An infra-red ray lamp comprising a terminal; strap metal legs mounted on the terminal and diverged from each other; a tapered reflector enclosing said legs and having its smaller end secured to the inner end of said legs; a supporting means within the reflector and secured to the outer ends of said legs; ray generator coils on said supporting means; having adjacent ends joined; and means associated with said coils and connecting the same to said terminal, said last mentioned means constituting additional Vsupporting means for the coils.

2. An infra-red ray lamp comprising a hollow threaded three-pole terminal; a U-shaped member having its yoke part secured across the end of the terminal; strap metal legs secured to the arms of said member and diverged from each other; a tapered reflector enclosing said legs and having its smaller end secured to the outer faceV of the inner end of said legs; annular supporting means within the reilector and secured to the outer ends of said legs; generator coils on said supporting means and having adjacent ends joined; a conductor connected to said adjacent ends; and conductors connected to the other ends respectively; said conductors being connected to the respective poles of said terminal and` constituting additional supporting means for said coils.

3. In an infra-red ray lamp, a terminal, `a U-shaped plate mounted on the forward end of said terminal and having its legs projecting forwardly, a support consisting of a strap bent to substantially triangular form and having the apical angle ofthe triangle open and secured to said legs, a dielectric ring mounted on the forward face of the base of the triangle, a clip xed to said base and having its ends overlapping the ring at diametrically opposite points, heater coils,

carried by said ring and having their ends between the points of engagement of said clip ends, and conductors connecting the ends of said coils and said terminaland constituting supports to prevent tilting of said ring on said strap.

WALTER G. BUNZL. 

